About: Parallel Flow Asymmetries in Heat Exchangers

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Není k dispozici (cs) The effect of flow asymmetry was observed experimentally in vertical parallel channels of a continuous direct ohmic heater. While downward oriented flow is evenly distributed at isothermal conditions, flow-rate in parallel channels differs in the case of heating due to the buoyancy effects. Three different configurations of parallel flow (with and without internal heating in channels) are analysed, giving critical values of Gr/Re or Ri=Gr/Re2 ensuring stable and even distribution of flow into parallel channels of vertically oriented heat exchangers or heaters. Experimental verification was based upon a) flow visualisation (injection of a coloured tracer and monitoring the tracer by a camera), b) measurement of temperature profiles, and on c) stimulus response experiments using KCl as a tracer for conductivity methods (2 Pt conductivity probes) and Tc99 as a radioisotope tracer (collimated scintillation detectors). The effect of flow asymmetry was observed experimentally in vertical parallel channels of a continuous direct ohmic heater. While downward oriented flow is evenly distributed at isothermal conditions, flow-rate in parallel channels differs in the case of heating due to the buoyancy effects. Three different configurations of parallel flow (with and without internal heating in channels) are analysed, giving critical values of Gr/Re or Ri=Gr/Re2 ensuring stable and even distribution of flow into parallel channels of vertically oriented heat exchangers or heaters. Experimental verification was based upon a) flow visualisation (injection of a coloured tracer and monitoring the tracer by a camera), b) measurement of temperature profiles, and on c) stimulus response experiments using KCl as a tracer for conductivity methods (2 Pt conductivity probes) and Tc99 as a radioisotope tracer (collimated scintillation detectors). (en)
Title	Není k dispozici (cs) Parallel Flow Asymmetries in Heat Exchangers Parallel Flow Asymmetries in Heat Exchangers (en)
skos:prefLabel	Není k dispozici (cs) Parallel Flow Asymmetries in Heat Exchangers Parallel Flow Asymmetries in Heat Exchangers (en)
skos:notation	RIV/68407700:21220/04:02100492!RIV/2005/GA0/212205/N
http://linked.open.../vavai/riv/strany	39 ; 49
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA101/02/0649), Z(MSM 212200008)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	Thýn, Jiří Houdek, Pavel Žitný, Rudolf
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta strojní
http://linked.open...dnocenehoVysledku	578828
http://linked.open...ai/riv/idVysledku	RIV/68407700:21220/04:02100492
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Heat Exchanger; asymmetries; parallel flow (en)
http://linked.open.../riv/klicoveSlovo	Heat Exchanger parallel flow asymmetries
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[216442FD0921]
http://linked.open...i/riv/nazevZdroje	Heat Transfer Engineering
http://linked.open...in/vavai/riv/obor	JP
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Modelling of heat transfer, flow and residence time distributions in apparatures of the food industry
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	25
http://linked.open...iv/tvurceVysledku	Žitný, Rudolf Houdek, Pavel Thýn, Jiří
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20212200008
issn	0145-7632
number of pages	11 (xsd:int)
http://localhost/t...ganizacniJednotka	21220

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